Hello. I'm new here. I had a gastric bypass in October 2002. At that time I weighed 315 lbs. I lost until I weighed 216. Then I got off track and now weigh 242. I'm so miserable and want to get back on track. I don't know what my portion size should be anymore. I know the areas that I need to change. Cutting out the snacks and gorging myself until I'm miserably full. I am starting to exercise again. I guess the portion size is what is bothering me the most. How much should I be eating at a meal time? I am so ready to get back on track.